› As of October 13, 2026, Gemini 4 Argon is available in Google Search’s AI Mode for Google AI Pro and Ultra subscribers.
› Google has not published a list of countries, said which queries are routed to Argon, or finished rolling it out.
› For you, the main questions are whether its answers and sources are reliable; for publishers, it’s whether AI answers send valuable visits.
› Here are the facts, context, and SEO implications - without reading too much into a single launch.Argon in Search, as of October 13, 2026AI Mode with Argon: Google AI Pro and Ultra subscribers.Google has not published a country list or mentioned the EU or Poland, either as included markets or exclusions.The rollout is gradual: Argon was not available in the Gemini app on my Pro account in Poland on the evening of October 13.Argon is not available on the free plan or Google AI Plus.